Sends the Delirium test page to the browser and starts running the given test case (which can be a SchemeUnit test suite or test case).

The optional run-tests argument specifies a function to actually run the tests. The default value of run-tests is a version of Schemeunit.plt’s test/text-ui procedure that pauses after each failed test and asks if you wish to continue running tests. This is useful because it allows you to inspect the state of the web page at the point of failure to see what went wrong.